Alerts are available for any length of text, as well as an optional dismiss button. For proper styling, use one of the four requiredcontextual classes (e.g., .alert-success). For inline dismissal, use the alerts jQuery plugin.
Use the .alert-linkutility class to quickly provide matching colored links within any alert.
Add a dismiss button and the .alert-dismissibleclass, which adds extra padding to the right of the alert and positions the .closebutton.
Use .bg-*, .text-whiteclasses.
Use .bg-white, .border, .border-*classes.
Alerts can also contain additional HTML elements like headings and paragraphs.